If it only happens when you first drive the car in the morning and it completely goes away afterwards then your assumption is correct--that's just the brakes warming up. The way to 'fix' it would be to get pads designed to be quiet. These will not perform as well--you sacrifice some performance for comfort--but if it's your daily driver then that shouldn't be an issue. There are also sprays and stuff you can put on...

...but that's of course talking about older cars. You have a brand new car, why not just take it in and tell the dealer what your problem is and have them do the work? It's gotta still be under warranty.

Wouldnt worry about it. Brakes squeal naturally. People just dont like the noise so manufacturers do quite a few things to dampen it. Most employ various shims, but they also make a few types of adhesives.

If you have a basic socket/tool set, you can run to the auto part store and pick up some anti-squeal for a couple of bucks- Then just apply the gunk to the parts of the pad that contact the claiper. Do not apply it to the side of the pad that touches the rotor. The pad can rub/vibrate/shimmy on the caliper and causes the noise. This works as a barrier to help prevent that.

Hm...so I thought so...but the thing is it is EVERY time I start up the car...so is it still warming up?

...Yes? I mean... it's not like you're stopping and starting the car in the middle of traffic. You stop the car, get out, do whatever it is you do after driving wherever you drove...the brakes cool down from doing practically nothing since it's a daily... then you get back in some time later and start it and...

Rub the pads with sandpaper to ensure no small stones/debris may be stuck in there - also to get rid of any excessive sheen that may have built up on the pad. NOT THE DISC WHEEL (the shiny part behind the wheel).

Change to a different brand of pads if these constantly give you issues. Could also be that you got a bad one out of the batch.

Environmental factors could play a part. If it doesn't happen with the same brand at different times of the year then that could be it.

If it's always happened and not just something recent - with every disc pad you've changed then it could be as mentioned before and they need to warm up. If you do brake a few times and it goes away then that could be it.

Please bear in mind that the video links I've posted I haven't actually watched. I just searched for and posted them - I can't endorse them unless I've watched them. Maybe later on when I don't feel so lazy I'll watch and leave the links or change them if I don't approve.